Question

The magnetic flux linked with a coil of N turns of area of cross section A held with its plane parallel to the field B is

• A.
• B. NAB
• C. $\frac { \mathrm { NAB } } { 4 }$
• D. Zero

Answer 1

Answer: (D)

Zero

Answer 2

Magnetic flux linked with a coil

$\phi = \mathrm { NBA } \cos \theta$

Since the magnetic field B is parallel to the area A,

i.e. $\theta = 90 ^ { \circ }$

$\therefore \phi = 0$